Question

A. This is the graph of a linear function.

B. This is the graph of a one-to-one function.
C. This is not the graph of a function.
D. This is the graph of a function, but it is not one-to-one.
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Answer 1

B. Graph of a one-to-one function.

Explanation:

A one-to-one function will have a unique value, y, for each different value of x. The graph displayed will have values very, very close to each other as x approaches ±4, but they won't be the same even at higher values of x.